The facial nerve is the seventh cranial nerve, or simply CN VII. It emerges from the pons of the brainstem, controls the muscles of facial expression, and functions in the conveyance of taste sensations from the anterior two-thirds of the tongue. The nerves typically travel from the pons through the facial canal in the temporal…
Gluteal nerve divides in superior & inferior gluteal nerve 1.Superior gluteal nerve 2.Inferior gluteal nerve 1.Superior gluteal nerve Anatomy of Superior Gluteal Nerve: The superior gluteal nerve (L4, L5, S1) passes through the sciatic notch above the piriformis muscle. It supplies the gluteus medius, minimus, and tensor fasciae latae muscles. The inferior gluteal nerve (L5,…
Introduction The muscles that are involved in the act of gripping are known as Grip Muscles, the Grip Muscles are flexor digitorum profundus, flexor digitorum superficialis, flexor digiti minimi brevis, flexor pollicis longus, extensor digitorum, lumbricals, interossei, adductor pollicis. Anatomy of Grip Muscles 1. Flexor Digitorum Profundus Origin It originates from the upper 3/4 of…
Introduction The scapula provides attachment for several groups of muscles. scapular muscles include the supraspinatus, subscapularis, teres minor, infraspinatus, deltoid, and teres major. These muscles attach to the scapular surface and assist with abduction and external and internal rotation of the glenohumeral joint. Anatomy of scapular muscles 1. Supraspinatus Origin It originates from the medial…
The sural nerve is a sensory nerve in the calf region (sura) of the leg. It is made up of branches of the tibial nerve and common fibular nerve, the medial cutaneous branch from the tibial nerve, and the lateral cutaneous branch from the common fibular nerve. Once formed, the nerves run down the mid-calf…
Introduction to Elbow Flexors The flexor group – including the brachialis, biceps brachii, and brachioradialis bend the arm by decreasing the angle between the forearm and upper arm. The brachialis is the primary flexor of the elbow and is found mainly in the upper arm between the humerus and the ulna. Superficial to the brachialis…
Obturator Nerve Anatomy The obturator nerve begins at the medial border of the psoas major muscle. It travels through the obturator foramen (an opening in the pelvic bone) before entering the thigh, where it branches into two parts, an anterior branch and a posterior branch. The nerve is part of a group of nerves called…
Common Peroneal Nerve Anatomy The common fibular nerve (common peroneal nerve; external popliteal nerve; lateral popliteal nerve) is a nerve in the lower leg that provides sensation over the posterolateral part of the leg and the knee joint. It divides at the knee into two terminal branches: The superficial fibular nerve and deep fibular nerve,…
The tibial nerve is a major peripheral nerve of the lower limb. It has several cutaneous and motor functions in the leg and foot.The tibial nerve is a branch of the sciatic nerve. The tibial nerve passes through the popliteal fossa to pass below the arch of the soleus. Description of Tibial Nerve: The Tibial…
Axillary Nerve Anatomy The axillary nerve originates from the ventral rami of the C5 and C6 spinal nerves and extends as the smaller branch of the brachial plexus’s posterior cord. Its anterior supply the teres minor while its posterior branches supply the deltoid muscle. After action from the supraspinatus has already reached 15 degrees, the…
